Research posters at the Bruce Hammock Alumni Lab Reunion were mostly scientific--except for several fun ones, including a water balloon battle poster. (Photo by Kathy Keatley Garvey)

Research posters at the Bruce Hammock Alumni Lab Reunion were mostly scientific--except for several fun ones, including a water balloon battle poster. (Photo by Kathy Keatley Garvey)

Researcher Christophe Morisseau (right) of the Hammock lab shows photos of previous water balloon battles to two colleagues. In the center is Kin Sing Stephen Lee of Michigan State University, an alumnus of the Hammock lab, and Bruce Graham Hammock (son of Distinguished Professor Bruce Dupree Hammock) of the UC Davis School of Veterinary Medicine. (Photo by Kathy Keatley Garvey)

Researcher Christophe Morisseau (right) of the Hammock lab shows photos of previous water balloon battles to two colleagues. In the center is Kin Sing Stephen Lee of Michigan State University, an alumnus of the Hammock lab, and Bruce Graham Hammock (son of Distinguished Professor Bruce Dupree Hammock) of the UC Davis School of Veterinary Medicine. (Photo by Kathy Keatley Garvey)

Cindy McReynolds (left) of the Bruce Hammock lab talks about her scientfic poster at the Bruce Hammock Alumni Lab Reunion, held last August at the UC Davis Conference Center. (Photo by Kathy Keatley Garvey)

Cindy McReynolds (left) of the Bruce Hammock lab talks about her scientfic poster at the Bruce Hammock Alumni Lab Reunion, held last August at the UC Davis Conference Center. (Photo by Kathy Keatley Garvey)

In this 2017 photo, Bruce Hammock douses Louisa Lol, who served as his executive administrative assistant before moving to Michigan. Her husband, Kin Sing Stephen Lee, formerly of the Hammock lab, is on the faculty of Michigan State University's Pharmacology and Toxicology. She serves as an administrative assistant at the university. (Photo by Kathy Keatley Garvey)

In this 2017 photo, Bruce Hammock douses Louisa Lol, who served as his executive administrative assistant before moving to Michigan. Her husband, Kin Sing Stephen Lee, formerly of the Hammock lab, is on the faculty of Michigan State University's Pharmacology and Toxicology. She serves as an administrative assistant at the university. (Photo by Kathy Keatley Garvey)

This is a photo from the Kenji Hashimoto lab, Chiba University Center for Forensic Mental Health, Japan, and includes some of the scientists working on the autism/schizophrenia research. In the center, front row, is Kenji Hashimoto. First author Ma Min, third from right, back row. Second author Qian Ren is in the back row, far right. Researcher Tamaki Ishima is the fourth from right, back row. (Photo courtesy of Kenji Hashimoto lab)

This is a photo from the Kenji Hashimoto lab, Chiba University Center for Forensic Mental Health, Japan, and includes some of the scientists working on the autism/schizophrenia research. In the center, front row, is Kenji Hashimoto. First author Ma Min, third from right, back row. Second author Qian Ren is in the back row, far right. Researcher Tamaki Ishima is the fourth from right, back row. (Photo courtesy of Kenji Hashimoto lab)

UC Davis distinguished professor Bruce Hammock's noted research on chronic pain all began at UC Berkeley when he wondered how caterpillars turn into butterflies. In this photo: two Gulf Fritillary butterfly mating, while a caterpillar munches passionflower leaves in the background. (Photo by Kathy Keatley Garvey)

UC Davis distinguished professor Bruce Hammock's noted research on chronic pain all began at UC Berkeley when he wondered how caterpillars turn into butterflies. In this photo: two Gulf Fritillary butterfly mating, while a caterpillar munches passionflower leaves in the background. (Photo by Kathy Keatley Garvey)

Bruce Hammock smiles as he receives accolades. In the back is his longtime friend Sarjeet Gill, distinguished professor at UC Riverside. They co-discovered an enzyme, epoxide hydrolase during their graduate studies at UC Berkeley. (Photo by Kathy Keatley Garvey)

Bruce Hammock smiles as he receives accolades. In the back is his longtime friend Sarjeet Gill, distinguished professor at UC Riverside. They co-discovered an enzyme, epoxide hydrolase during their graduate studies at UC Berkeley. (Photo by Kathy Keatley Garvey)

Some 100 scientists (and their families) from 10 different countries converged on the UC Davis campus to honor their mentor, Bruce Hammock. (Photo by Kathy Keatley Garvey)

Some 100 scientists (and their families) from 10 different countries converged on the UC Davis campus to honor their mentor, Bruce Hammock. (Photo by Kathy Keatley Garvey)